Bolster and chock



A. B. CADMAN.-

BOLSTER AND CHUCK.

APPLICATION FILED MAY 24, 1920.

1,41 1,403. Patented Apr,4,1922,

2 SHEETS-SHEET 1- jfifleiziaz A. B. CADMAN. BOLSTER AND'CHOCK.

APPLICATION FILED MAY 24, I920.

Patented Apr; 4, 1922.

2 SHEETSSHEET 2.

UNITED raT NT OFFICE.

ADDI BENJAMIN oanrran, or BELOIT, Wisconsin, ASSIGNQR .10 WARNER. Marianneroams COMPANY, or nnrorr, Wisconsin, A CORPORATION or wrscon'sn nonsrna AND onocx.

Specification of Letters Patent. Patented A 4 1922 I Application filed May 24, 1920. Serial No. 383,653.

To all whom it may concern:

Be it known that I, Anni BENJAMIN CAD- MAN, a citizen of the United States, residing at Beloit, in the county of Rock and State of \Visconsin, have invented certain new and useful Improvements in Bolsters and Chocks, of which the following is a specification.

My invention relates to equipment for the transportation of logs and similar articles and more specifically to an improved bolster and bolster chock for trucks.

One oi the objects of my invention is to provide a bolster and a chock which are of simple construction, cheap to manufacture and durable in service.

Another object is to provide a bolster and a chock so constructed that the chock may be mounted on the upper side of the bolster to retain a load thereon, or may be suspend ed below the bolster to serve as a simport tor a loading skid.

Another object is to so arrange the parts' of the chock that the various devices associated therewith may be attached or removed Without interfering with eachother; Further objects and advantages of my invention will become apparent as the description proceeds. 7

My invention in its preferred form romprisesa bolster having outwardly extending flanges on the upper and lower surfaces, and a chock detachably mountable upon either surface ofthe bolster and embodying means for receiving and holding a stake, means for attaching a so-called booming chain forbinding the load, and means for securing a locking chain to prevent escape of the chock "from the bolster.

In loading pipe, logs or similar articles from the ground it is customary to use skids, usually pipes or pieces of timber, inclined from the ground with their upper ends resting on the bolsters. Difficulty has been experienced in suitably supporting the skids on the bolsters at a level which would de liver the logs directly to the carrying surface of the bolsters. By reversing the chock and suspending it from the lower side of the bolster I am able to providea convenient and stable supportfor the upper end of such a skid.

Inthe devices of the prior art, the booming chain and the locking chain have usually been attached to the chock in such, a manner supporting the end of a skid.

that the booming chain gets in the way of novel shape and relationship of the partsof I the chock.

In the accompanying drawings I have shown a preterred embodiment of my invention in which Fig, 1 is a perspectiveview of a bolster mounted on a truck or trailer body carrying at each end a chock in position for retaining the load. Fig.2 shows one of the chocks in reversed position for Fig. 3 represents a plan view of one end of the bolster with a chock mounted upon its upper-side. Fig. 4 represents an end view of a typical load supported on a bolster and chocks, with a partial view of the mounting attachments carried by a truck. Fig. 5 illustrates the general method of loading logs and the like upon a combination vehicle comprising tractor and trailer trucks.

The bolster selected for illustrationcomprisestwo channels 10 laid back to bac'kand united into a rigid frame by small channel sections 11, one at each end, and a central channels form the support for thechocks on the upper and lower surfaces ofthe bol- 'ster. The block12 has a simple socket 13 to receive a king-pin (not shown) for the pivotal mounting of the bolster. The bolster maybe supported upon. a truck platform 14 by means of a bed 15 suitably attached tothe platform as by bolted straps 16 and centrally carrying a fixed plate 17 on which the king pin is mounted. Suitable sh0es18 may be provided to slidably support the ends ofthe bolster.

The chock illustrated, indicated in its entirety by the reference character 19, has suitable means supporting it slidably on the upper and lower surfaces of the bolster. This means consists of laterally extending wings 20 having reverselybent portions 21 engaging'th'e flanges of the channels 10. Locking chains 22 attached at their inner ends to the inid'portion of the bolster extend out and through a laterally opening tubular passageway or barrel in the side boss 23 of each chock. Each locking chain carries at its end a suit-able fid book 24; which m y be hooked over the link of the chain at the end of the passageway whereby the chock is locked against outwardmovement, in. any desired position along the upper surface of the bolster.

The chock has a simple body comprising walls 25 rising fronr the wings 20, the inner edges of the walls extending at an angle and being reinforced by a web portion 26. A notch 26 for receiving and supporting a loading skid, is formed by the walls and web portion 26. A boss 27, extending out from the body over the wing on'the side opposite to the boss 23, is adapted to receive a stake 28in a suitable socket. The eye 29 for receiving the booming chain comprises a U- shaped'portion extending outwardly from the outerside of the body having its upper arm acontinuation of the upper surface of the bodyand being reinforced by a suitable rib 3O lying in a vertical plane and extending over the upper surface of the bod and vertically down across the body of tlie U- shaped portion. Referring to Fig. 4, it will be seen that a booming chain 36 may be attached through the eye 29 and suitably fastened without interfering with the locking chain 22 and fid hook 24 which latter lies at the corner of one of the wings completely out of the way.

Referring to Fig. 5, I have illustrated a manner of loading logs and the like, accordin to my invention, upon a combination of 7 ve icles comprising a tractor and a trailer.

The rear portion of a four wheel motor truck is re resented at 32, having a bolster 10 mounte as described upon its platform.

A trailer truck 33 is'shown connected to the motor truck by a suitable draw bar 33, and having a bolster 10 mounted upon its frame. A chock 19 is mounted in reverse position on theunderside of each of'the twobolsters. The skids 31 are shown with their upper ends resting on the chocks and their lower ends on the ground in such position that the log or pipe tvirmay be rolled up the inclined skids and rested upon the bolsters in loaded position 35. i 1 v f The adaptability of the chock in the load ing operation, illustrated in Fig. 5,is ap'par ent. When mounted on the under side of ..the.bolster, as illustrated in Fig. 2, itturnlshes a: positive support upon a portion of the chock extending outwardly from the bolster for the skid 31 which is held .in position with upper end flush. with the upper sur- .face .of the bolster.

that heavy logs or pipes may be rolled into f positionon the bolsters with the greatest faof.my pr or application Serial N 317 962 filed Augll6tli, 1919.

r With the chocks and: SkIClS so arranged on the bolsters mounted on: both tractor; and trailer it is apparent tion associated with a specific form of bolster,

it should be clearly understood that the description is only for purposes of illustration, that devices according to my invention may be designed to be mounted on other types of bolsters or other supports, and that many other modifications and variations will naturally occur to thoseskilled in the art. I aim in the subjoined claims to cover all such legitimate variations and modifications.

I claim as my invention:

1. A chock having. in combination,v abody, wings projecting from either side of said body adapted to overlie and be supported upon a support, a stake socket portion overlying one of said wings, and a chain receiving portion overlying the other-of said wings.

2. A chock having, in combination, a body, wings projecting from either side of said body formed to overlie and be supported upon a support. a stake socket portion overlying one of said Wings, a chain receiving portion over-lying the other of said wings. and a chain attachment portion projecting outwardly from said body.

3. A chock having, in combination, a body. wings projecting'from either side of said body, said wings overlying and supportedupon a support. a chain receiving portion overlying one of said wings, and a chain attachment portion projecting outwardly from said body. i

4. rt chock having, in combination, a

body having an inclined inner face and a verical outer face, a U-shaped eye projecting from said outer face and a reinforcing rib arising from the upper surface of said body and partially embracing said U-shaped eye. 4

5. In adevice of the .class described, in

combination, a bolster, a chock slidanlyv combination, a chock, a locking chain attached at its inner end to a fixed support,

' an outwardly and laterally inclined socket in said chock, said locking chain passin' through said socket, and a fid hook attache Y to the end of said locking chain adapted to lock the chain against Withdrawal through said socket.

,8. In a device of the class described, in combination, a bolster, two chocks slidably mounted outwardly from the center of said bolster, each cock having outwardly extending means for attaching a booming chain and having means spaced laterally therefrom to secure a locking chain, said means being arranged to prevent interference between said booming chain and lockingchain.

9. In a device of the class described, in combination, a bolster and a chock, said bolster and chock having interengaging means for mounting said chock selectively on top of said bolster to serve as load retaining means or underneath said bolster to serve as skid supporting means.

10. In combination with a supporting bolster, a chock having slidable means of selective attachment to the upper side or under side of said bolster or either end thereof.

11. In combination With a supporting bolster, a chock slidably mounted on the un derside of said bolster having a portion eX- tending outwardly therefrom to support a loading skid.

12. In combination with a supporting bolster, a chock mounted on the underside thereof adapted to support a loading skid.

13. In a device of the class described in combination, a vehicle body, a bolster mounted thereon having symmetrical ends extending outwardly from said body, and a chock movably mounted on said bolster having means of attachment thereto arranged to permit placing said chock in position selectively above or below either end of said bolster.

14;. In combination with a supporting bolster, a chock mounted thereon comprising a body portion, wings projecting from either side of said body portion adapted to engage said bolster in slidable attachment selectively upon its upper or under surfaces on either end thereof, a stake socket portion carried by one of said wings, a chain receiving portion carried by the other of said wings, and a chain attachment portion extending outwardly from said body.

15. In combination with a supporting bolster, a chock mounted thereon by slidable means of attachment adapted to engage said bolster selectively upon its upper or under surfaces at either end, an outwardly and laterally inclined barrel through said chock, a locking chain in fixed attachment at its inner end with said bolster and passing through said barrel, and means for locking said chain against withdrawal through said barrel.

In testimony whereof, I have hereunto set my hand.

ADDI BENJAMIN CADMAN. 

